Telegraphy.



PATENTED APR. 2, 1 907. W. P. PHILLIPS. TELEGRAPHY. APPLICATION FILEDJULY 27, 1904.

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PATENTBD APR. 2, 1907.

W. P. PHILLIPS.

TELEGRAPHY.

APPLICATION FILED JULY z 4 SHEETS-SHEET 2.

No. 84.849. PATBNTED APR. 2, 1907.

W. P. PHILLIPS. TELEGRAPHY.

APPLICATION FILED JULY 27, 1904.

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEIoE.

WALTER P. PHILLIPS, OF NFlW YORK, N. Y.

'TELEGRAPHY.

- `Spec'cation of Letters Patent.

Patented April 2, 1907.

Application filed July 27, 1904. Serial No. 218,434.

To (all whom it may concern."

Be it known that I, WALTER P. PHILLIPS, a citizen of the United States,residing atl New York, in the countv and State of New York, and in theborough of Manhattan, have invented certain new and useful Improvementsin Telegraphy, of which the fol owing is a peciiication, reference beinhad to the rawings accompanying and orming a part of the same.

The invention subject of my present ap lication is an improvement insystems of te egrapliy, more particularly such as set forth in UnitedStates Patent to Roderick H. Weiny, No. 578,156, dated March 2, 1897,.in lwhich the messages to be transmitted are iirst recorded at thesending-station by 'an a aratus operated by an ordinary key, w chembosses the messages in Morse characters on a tape. I This tape is thenrun through a suitable transmltter, by means of which the signals aresent over the line to a second embossing apparatus, by which the recordis reproduced on a similar tape. This latter tape is then passed througha 'second instrument similar to the transmitter or divided into sectionsand used for operatinga number of such instruments, which in their turno erate a sounder or sounders from which t e Inessages may be read.l

This s stem, designed to meet the requirements o' the ractical operationof long circuits, particullarly those which are occasionallyovercrowded, enables several Morse operators at a sending-station torecord at a comparatively slow rate a large number of messfges which maybe transmitted and recorde with Great rapidity and reproduced at anydesired slower speed at the receiving-station, where they may be read bysound and transcribed by the ordinary operator. The most importantconsideration 1n such a system is evidently, there-fore, the provisionof means for the rapid transmission and accurate recording of themessages in Morse characters on a tape at the sending and receivingstations, but more es ecially at the latter, and to secure this resu tis the special object of my present invention.

The nature of the improvements which l have devised for carrying out theinvention will be understood by reference to the accompanying drawings,in which- Figure 1 is a plan view of my improved embossing lpparatus.Fig. 2is anend view ol' the same. ig. 3 is a central vertical section ofan improved tape-holding spool or reel. Fig. 4 is a plan view of theinstrument for transmitting the characters from an embossed tape to lineor to a local sounder. Fig. 5 is a crosssection of Fig. 4 adjacent tothe vibrating contact-tongue 37. Fig. 6 is a diagramgo'f the circuitconnections of the embossing or recording apparatus, and Fig. 7 is aview illustrating the manner of using the embossed matrix in theoperation of the transmitter.

Referring to Fig. 1, 2 designates aspool, carrying a tape 1. The latteris led around an idler 3, to and around a grooved roller 4, under aresser-roller 5, and thence to a takeup spoo or winding-reel 6. Aspring-actu- I to disengage it from the latter when the impressions arebeing made.

traveling The stylus 8 is mounted onl the system of armatures 9 10 ofthe electromaanets 11 12, by the alternate ener ization oli which itisadvanced and retracte and so caused to emboss the Morse characters inthe'tape along the central'line of the latter immediately over thecircular groove in roller 4. v

The armatures 9 10, facing the opposite ends ofthe cores of magnets 1112, are rigidly "connected by a bar 13 and supported by Hat springs 1415, which are preferably slightly bowed toward the magnet-poles andadjustably mounted with respect to the magnets on side bars 16. By thismeans great sensitiveness and quick action are secured and exact andpermanent adjustment readily and easily effected.

The two magnets l1 12 are adapted to be alternately energized by a localbattery 17, controlled by a relay or pivoted-contact armature lever 19,retracted from the magnet by a spring 20 and arranged to vibrate betweencontact-stops 21 and 22. Normally the lever 19 is held by its spring 20-in position to close thecircuit of the battery 17 through-the uppermagnet or coils 1], which when energized retracts the stylus 8, so thatits end lies just above the surface of the tape 1. When the circuit ofthe magnet 18 is closed, the lever 19 is drawn over into contact withthe stop 22, and this interrupts y line magnet 18 and a IOC the circuitof magnets 11 and closes the circuit throu h magnet 12, energizing thelatter, and thus orcing the stylus upward, making in the tape anindentation the length of which depends upon the rate of movement of thepaper and the duration of the activity of magnet 18. f

VVhile the embossed record at the sendin station may'be produced by anysuitable apparatus, I prefer to use at both the sending and receivingstations the special device above described. The tape which receives theimpressions is continuously fed by a small motor 23, engaging with theroller 4, through suitable gears and also with the winding-reel 6, thelatter connection being through friction devices which permit the reelto slip, so as not to put too great a strain on the tape.

The magnet 18 at the sending-station is operated by a Morse key, but atthe receivingstation it is operated by the impulses of currenttransmitted over the line.

It will be observed that a movement of the armatures 9 10 in eitherdirection beyond very narrow limits subjects the springs 14 15 to atension which acts to return the armatures to a position of symmetrywith respect to the two magnets, so that the attractive effect of eithermagnet in overcoming the inertia of the armature system will be aided bythe springs. To still further assist this action and render theoperation of the magnets themselves quicker than they would otherwise beif the energizing effect of the current from the battery 17 alone weredepended upon, I combine with the magnets 11 12 a reactance coil orcoils constituting what is commonly known as a booster, which on theseparation of the lever from either of its contacts 21 or 22 willinstantly discharge through the magnets, the direction of the disecharge being such as to neutralize the residual magnetism of thepreviously active magnet and to impart to the other a polarity the sameas that which will be imparted by the battery-current when the circuitVthrough the opposite stop is completed. This device consists of a coilor pair of coils 24 25, connected in series preferably surrounding alaminated iron core'26 and having its terminals connected, respectively,to the terminals of the magnets 11 and 12 and also with the twocontact-points 21- and 22. A local battery 27, with its poles opposingthose of battery 17, is connected by one pole to the contact-lever 19and by the other pole to the middle point of the reactance-coil or tothe wire connecting the coils 24 and 25 when two of the latter are used.

When the lever 19 is in contact with the stop 21, the upper magnet 11,as has been explained, will be energized; but by the same connectionsthe battery 27 will be closed, through the reactance-coil 24, and willcharge the latter. The instant that lever 19 leaves the stop 21 the coil24 will dischargeback through the magnets 11 and 12, neutralizing theresidual magnetism in 11 and energizing magnet 12 with the same polarityas that which it will subsequently receive by the current from battery17 when the contact-lever 19 engages stop 22. In this way the action ofbattery 17 is assisted, and a quicker and more certain action of thearmature system and stylus secured.

As batteries 17 and 27 are in opposition, the currents from 'neither canfollow any other paths than those indicated above. 1t will be understoodthat the magnets 11 and 12, which are shown as having their respectivecoils connected in multiple, may have these coils in series.

When the desired number of messages have been recorded in the mannerabove described, the matrix or embossed tape is removed from therecording apparatus and run through a transmitter. The instrument whichI employ for this purpose is shown inI Figs. 4 and 5.

The roll of tape removed from the receiving-spool of the embossinapparatus is placed upon the spool 29 an its end carried around rollers30 and 31 and thence to any suitable device or receptacle for receivingit. The roller 30 is carried by a lever 32, which is pivoted at 34`andheld in proper position against a stud 35 by a spring 33. Anadjusting-screw 36 is employed to regulate the distance of the roller 30from the end of the conl tact-tongue 37, which is vibrated by theembossed characters on the tape. A presserroll 38, also connected withspring 33,bears upon the tape and keeps it firmly in contact with roller31.

To facilitate the insertion of the tape, a lever 39, with a cam 40 atits end, is ivoted to the frame of the instrument an arranged whenturned, as shown in dotted lines, to force the roller 38 away fromroller 31 and roller 30 away from the end of the tongue 37.

The relations of the embossed tape and the contact-tongue are more fullyillustrated lin Fig. 6. Normally the end of the tongue 37 extendsslightly beyond the flat surface of the ta e, so that as the latter isdrawn throng ,the instrument the depressed portions correspondingto thedots and dashes will leave the tongue free to move over into contactwith a stop 41 while the flat portions, corresponding to the spacesbetween letters, will engage the tongue and force it over into contactwith stop 42. In this way current impulses of opposite directions may besent to line from a battery, which is often an advantage, as it enablesthe transmitter to operate polarized relays.

To facilitate the removal of the tape from the instrument after it hasbeen wound up, I

i employ a series vof pins y43, which are set in ICC IOS

the plate 44. The latter turns loosely on the spindle 45, but is held infrictional engagement therewith by an arm 46, carrying a screw 47, thatbearsy upon the edge of the plate 44.

Over the pins is placed a thin plate 48, carrying a hollow standard 49,that fits over the spindle 45 and serves as a handle to lift the plate48. The tape is wound around the pins 43, and when the roll is completedor of sufficient size it is lifted off from the pins by raising theplate 48.

It will be understood that when the desired number of messages have beenrecorded at the sending-station the roll of ta eis transferred to thetransmitter and run t ough the latter. The tape may be run throughbackward or rewound before it is passed through;

. but in either event the record is exactly reproduced at'thereceiving-station, where it may be run through a transmitter or dividedup and run through several transmitters and read from a sounder orSounders and transscribed in the usual way. 'In this way a very muchlarger volume of business can be carried on over a circuit, whethersingle or multiplex, by ordinary Morse operators than would be possibleunder ordinary workingconditions.

Having now described my invention, what I claim is- 1. A telegraphicrecording instrument comprising in combination, two op ositelyactingmagnets, armatures facing t e oles of said magnets and rigidly connectetogether, a recording device carried by lthe armatures, lat springssupporting said armatures and adjustable sup orts for the opposite endsof the same, wlliereby said springs tend to maintain the armatures in aposition of symmetry with respect to the magnets, as set forth.

2. A telegraphic instrument comprising in combination twooppositely-acting magnets, an armature' adapted to be reciprocatedthereby, a reactance-coil connected with said magnets, a source ofcurrent for`energizing the magnets and for charging the reactancecoiland circuit-controlling devices for alternately energizing the magnetsand directing the discharge of the reactance-coil through the same, asand for the purpose set forth.

3. A telegraphic instrument comprising in combination twooppositely-acting magnets, an armature adapted 4to be reciprocatedthereby, a reactance-coil connected with said magnets, a source ofcurrent for energizing the magnets, a source of current for charging thereactance-coil, and circuit-controlling devices for directing thecurrent from the firstnamed source through the two magnets alternately,and discharging the reactance-coil through the magnets at the instant ofthe interruption of the current through either, as and for the purposeset forth.

4. In a telegraphic instrument the combi- .nation with twooppositely-acting ma nets .of a source of current, a circuit-controllerfor directing the current through the magnets alternately, areactance-coil in series with the two magnets, a source of current forcharging the same, one pole being connected to the middle point of thereactance-coil, and the other to the contact-lever of thecircuit-controller, but in o position to the other source, wherebyone-ha f of the reactance-coil will be in circuit with its sourcewhileeither magnet is energized, but permitted to discharge through themagnets when the energizingcurrent is interrupted, as set forth.

6. In a telegraphic recording instrument the combination with twooppositely-acting magnets, rigidly-connected armatures, and flat springssupporting the same in a position of symmetry with respect to the polesof the Ina nets, of means for alternately energizing sai magnets, areactance-coil in series therewith, means for charging the same, anddirecting the discharge through the magnets at the instant of theinterruption of current through either in a direction to neutralize theresidual magnetism ofthe one and imp art the proper polarity to theother for the reciprocation of the armatures, as set forth.

7 A telegra hic recording instrument comprising in com ination twooppositely-directed ma net-poles, armatures acing said poles and aaptedto be reciprocated by the alternate attractive action thereof, arecording device carried by the armatures, flat springs supporting saidarmatures and adjustable supports or the opposite ends of the same,whereby said springs tend to maintain the armatures in a respect to thepo es, as set forth.

v WALTER P. PHILLIPS. Witnesses:

THos. J. BYRNEs. S. S. DUNHAM.

osition of symmetry, with IOO IOS

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